XPath:如何选择与同一级别的其他元素相关的元素 [英] XPath: how to select elements that are related to other on the same level

问题描述

问题很简单，但我没有足够的练习来解决这个问题:)

如果我们知道我们只需要 item_promo 元素，如何从块"内的每个 div 中获取 price 文本值.

<div class="item_promo">item</div><div class="item_price">123</div>
<div class="block"><div class="item_promo">item</div><div class="item_price">456</div>

<div class="block"><div class="item_promo">item</div><div class="item_price">789</div>

<div class="block"><div class="item">item</div><div class="item_price">222</div>

<div class="block"><div class="item">item</div><div class="item_price">333</div>

解决方案

你可以使用 xpath :

//div[@class='block']/*[@class='item_promo']/following-sibling::div[@class='item_price']/text()

您查找具有属性 class 且值为 item_promo 的 div 元素，并查看其以下具有属性 item_price 的兄弟元素 并抓取文本.

The question is simple but I don't have enough practice for this case :)

How to get price text value from every div within "block" if we know that we need only item_promo elements.

<div class="block">
     <div class="item_promo">item</div>
     <div class="item_price">123</div>
</div>
<div class="block">
     <div class="item_promo">item</div>
     <div class="item_price">456</div>
</div>
<div class="block">
     <div class="item_promo">item</div>
     <div class="item_price">789</div>
</div>
<div class="block">
     <div class="item">item</div>
     <div class="item_price">222</div>
</div>
<div class="block">
     <div class="item">item</div>
     <div class="item_price">333</div>
</div>

解决方案

You could use the xpath :

//div[@class='block']/*[@class='item_promo']/following-sibling::div[@class='item_price']/text()

You look for div elements that has attribute class with value item_promo and look at its following sibling which has an attribute item_price and grab the text.

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